Why plateaus happen on GLP-1 specifically
Weight loss is never linear. On a GLP-1, you see an initial water drop (weeks 1–2), a steep middle phase (weeks 12–32), and a glidepath into a new set point (weeks 32+). Plateaus during the glidepath are expected. A true pathological plateau — 4+ weeks of flat trend weight with measurable decline in appetite suppression — warrants intervention.
The plateau-breaker stack (in order)
- Re-baseline the calorie target. Your maintenance intake at 180 lb is 200–300 kcal lower than it was at 220 lb. Recalibrate.
- Protein audit. Most plateaus correlate with protein drift to 0.6–0.8 g/kg. Push back to 1.2–1.6 g/kg goal weight.
- Resistance training dose check. 2–3 full-body sessions/week, progressive overload. If missing, restore.
- Dose titration. Conversation with prescriber: up a step if not at max and side effects tolerable.
- Sleep and stress. Cortisol elevation blunts loss. 7+ hours, structured stress management.
- NEAT check. Weight loss drops non-exercise activity unconsciously. Aim for 8–10k steps/day.
When to ask about a drug switch
If you’re on Wegovy 2.4 mg at max dose and 6+ months in, plateaued at 10–14% TBWL, a switch to Zepbound is worth discussing. SURMOUNT-5 head-to-head showed tirzepatide beat semaglutide (20.2% vs 13.7% at 72 weeks). Re-titration from a 2.5 mg start takes time but often produces another 5–10% TBWL.
Measurement matters
Weigh same day, same time, same clothes. Use a 7-day rolling average rather than any single reading. Measure waist circumference monthly. Take photos. Plateaus often have body-composition change happening underneath — fat going down, muscle going up — which the scale masks.